code: def test_accumulate_fastpath(
      self,
      func,
      nin,
      nout,
      identity,
      shape,
      axis,
      dtype,
      reducer,
      accumulator,
  ):
      del reducer  # unused
      if (nin, nout) != (2, 1):
          self.skipTest(
              f"reduce requires (nin, nout)=(2, 1); got {(nin, nout)=}"
          )
      rng = jtu.rand_default(self.rng())
      args = (rng(shape, dtype),)
      jnp_fun = partial(
          jnp.frompyfunc(
              func, nin=nin, nout=nout, identity=identity
          ).accumulate,
          axis=axis,
      )
      self.assertEqual(
          get_if_single_primitive(jnp_fun, *args), accumulator
      )
  
imports: from functools import partial
  from absl.testing import absltest
  import numpy
  import jax
  import jax.numpy
  from jax._src import test_util
  from jax._src.numpy.ufunc_api import get_if_single_primitive
  from jax import config
label_desc: Use image node_id 11 for calling the LaxNumpyUfuncTests obj's underlying member method code with example usage: obj.test_accumulate_fastpath(func, nin, nout, identity, shape, axis, dtype, reducer, accumulator) without return types